Opened 9 years ago
Closed 9 years ago
#2287 closed defect (fixed)
MPlayer and raw video
| Reported by: | matsp888 | Owned by: | beastd |
|---|---|---|---|
| Priority: | normal | Component: | demuxer |
| Version: | unspecified | Severity: | major |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | ||
| Reproduced by developer: | no | Analyzed by developer: | no |
Description
MPlayer naively assumes that 'rawvideo' raw video from libavcodec (whether it's contained in AVI, QuickTime or something else) contains 24-bit RGB triplets. It *can*, for pixel formats like rgb24 and bgr24, but it can also be less than 24 bits (palettized, grayscale or monochrome). Anything that's not compressed/encoded.
What's more, MPlayer misinterprets a negative height in the BITMAPINFOHEADER for AVI files as being a very large unsigned value, rather than the indication of the video data being arranged top-to-bottom rather than bottom-to-top.
The files below with raw video will play without video in MPlayer.
QuickTime 1 bpp:
https://drive.google.com/open?id=0B3_pEBoLs0faU05mTVJ3b3VZcmc
QuickTime 2 bpp:
https://drive.google.com/open?id=0B3_pEBoLs0faZUc4VEVwalhGSE0
QuickTime 4 bpp:
https://drive.google.com/open?id=0B3_pEBoLs0facHJkWnhvYXdtbms
QuickTime 8 bpp:
https://drive.google.com/open?id=0B3_pEBoLs0fabUdRcTVxRl9yVWM
AVI 1 bpp:
https://drive.google.com/open?id=0B3_pEBoLs0faelN5RXpKLWtfTnM
AVI 2 bpp:
https://drive.google.com/open?id=0B3_pEBoLs0fabnQyNm5VV2NXNGM
AVI 4 bpp:
https://drive.google.com/open?id=0B3_pEBoLs0faTnppb3NjdFQzMmc
AVI 8 bpp:
https://drive.google.com/open?id=0B3_pEBoLs0faekxWUTdkVGNTTlk
Change History (3)
comment:1 by , 9 years ago
comment:3 by , 9 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
I should perhaps add that with a recent Git checkout of FFmpeg, all of the files will have the video returned in AV_PIX_FMT_PAL8 pixel format from libavcodec.